9889712102 has 16 divisors (see below), whose sum is σ = 14879985120. Its totient is φ = 4929735552.

The previous prime is 9889712099. The next prime is 9889712113. The reversal of 9889712102 is 2012179889.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1359908 + ... + 1367160.

It is an arithmetic number, because the mean of its divisors is an integer number (929999070).

Almost surely, 2^9889712102 is an apocalyptic number.

9889712102 is a deficient number, since it is larger than the sum of its proper divisors (4990273018).

9889712102 is a wasteful number, since it uses less digits than its factorization.

9889712102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9247.

The product of its (nonzero) digits is 145152, while the sum is 47.

The square root of 9889712102 is about 99447.0316399640. The cubic root of 9889712102 is about 2146.4851242008.

The spelling of 9889712102 in words is "nine billion, eight hundred eighty-nine million, seven hundred twelve thousand, one hundred two".